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12368557 = 531092141
BaseRepresentation
bin101111001011…
…101010101101
3212021101110201
4233023222231
511131243212
61121033501
7210062635
oct57135255
925241421
1012368557
116a88753
124185891
132740996
1418dd6c5
151144b57
hexbcbaad

12368557 has 8 divisors (see below), whose sum is σ = 12723480. Its totient is φ = 12018240.

The previous prime is 12368539. The next prime is 12368579. The reversal of 12368557 is 75586321.

It can be written as a sum of positive squares in 4 ways, for example, as 7502121 + 4866436 = 2739^2 + 2206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12368557 - 211 = 12366509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12368507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4707 + ... + 6847.

It is an arithmetic number, because the mean of its divisors is an integer number (1590435).

Almost surely, 212368557 is an apocalyptic number.

It is an amenable number.

12368557 is a deficient number, since it is larger than the sum of its proper divisors (354923).

12368557 is a wasteful number, since it uses less digits than its factorization.

12368557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303.

The product of its digits is 50400, while the sum is 37.

The square root of 12368557 is about 3516.8959324950. The cubic root of 12368557 is about 231.2631010839.

The spelling of 12368557 in words is "twelve million, three hundred sixty-eight thousand, five hundred fifty-seven".

Divisors: 1 53 109 2141 5777 113473 233369 12368557